Which version to use?

[Jeremy DeHaan via D.gnu]

On (my version of) Linux, gdc has an official apt repository, but 
there also exists a download page with what appears to be a much 
more recent version of gdc. So..which one should I use? I'd like 
to have pre-built binaries for my library ready to go for users, 
but I'm not sure which one I should build with.

Right now I am leaning towards the one on the download page due 
to updates, bug fixes, etc, but many people will presumably use 
whats in apt.

Suggestions?